Improvement in permutation looks



. .2 Sheets-Sheet 1.

B. W. BRTTLL. PBRMUTATION LOCK.

No. 68,281. Patented Aug. 27, 1867.

2 Sheets-Shet 2.

E. W. BRETTELL.

PBRMUTATION 1.00K.

No. 68,281. Patented Aug. 27, 1867.

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git-itch faire @anni @Hite EDWARD W. BRETTELL, OF NEWARK, ANEW` JERSEY.

Letters Patent No. 68,281, dated August 27, 186i'.

IMPROVEMENT 1N PEnMUTATIonLeeKS,

LE-lit Scintille filent tu in tlunst Elrltrrs ihtmt mit uniting imi ntllge sans.

TO ALL WHOM IT MAY CONCERN:

Be it. known that I, EDWARD W. Bnu'rTELL, of the city of Newark, in the county of Essex, and State o f New Jersey, have invented u new and useful Bank-Lock; and I do herehydeclarc that the following is n full and exact description thereof, refcrcncc'being had to the accompanying drawings, and to the letters of reference marked thereon. The accompanying drawings form a part of this specification.

Figure 1, plate 1, is a front View, showing it unlocked. l

Figure 2, plate 1, isa front view, showing it locked.

Figure 3, plate 1, is a cap covering the interior of the lock, with its other mechanisms, t\c.

Figure 1, plate 2, is a front view with the cap removed, showing the interior of the lock, with its several parts.

Figure 2, plate 2, is a. sectional view, showing the position of its several parts relatively to euch other.

Figure 3, plate 2, isa front and edge of theA disks.

Figure 4, plate 2, is a front and edge view of a circular spring, with its recess.

Figure 5, plate' 2, is a. swivelling-dog with two claws. I

Figure 6, plete 2, is a claw-socket with two claws.

Figure 7, plate 2, is alever with a recess and check.

Similar letters of reference indicate like parts in Aall the figures.

My invention is intended to make a lock more secure against bui-glars, :ind little objectionable on account of coltl l To enahlc others skilled in the art to make and use my invention, I will proceed to describe its construction and operation `hy the aid of the drawings and of the letters of reference marked thereon.

C is a casing; with a hollow shaft in the centre, 'containing' also a stump, s, better seen in fig. 1, plate 24 Fig. 1, plate 2. W is a hollow wheel, containing a stump, si", also a recess, R.

Fig. 3, plate 2. 'D is a series o? disks, grooved on the edge, showing the position of the pins p, liywhidi they are changed,

Fig. 4, plate 2. Q are circular springs, with a recess, R, which are sprung into the grooves oi' the disks D, and by their own elasticity are held in their proper places.

Fig. 5, plate 2. G is a swivelling-dog with twoclaws, 1 and 2, and swings independently of all other parts on the stump s2 of the cap K.

Fig. 6, plate 2. F is a claw-socket, and` has two claws, 8 and 4, similar to those of the swivclling-dog G, and ts over the collar i on the cap K. It has also a square hole, U,- the particular use of which will be hereafter described.

`Figure T, plate 2. L is a. lever. containinga, small check, c1, on the inner edge, and also the recess R3, in which the stump a5 of the wheel W works, the other end of the lever being held in its place by the stump s* of the casing C, (sce g. l, platery) which is stationary.

Figs. 1 and 2, plate 2. d is a dog attached to the shaft S, the object of which is to turn or change the disks by touching the pinp of the outside'disk, it in turn communicating its motion to the others, Sie.

Figf2, plate i'. His a knob secured to the sha-ft S, and figured or lettered the same as many others now in use. Fig. 2,v plate 2. S is o. shaft passing through the entire lock, the end ol' which is square, allowing of a nut- N being screwed on. thus preventing its being entirely drawn out. -E represents the door with the dialplate attached thereon.

Figs.` 1 and 2,-platc 1 B is a. holt, with a check c: on its lower edge, containing also two recesses, R" and R5, in which two stumps s and al work, thereby giving motion to the holt; also assisting to guidethe same. The bolt lying on the outside oi' the cap K receives its motion from the same through the stu'rnps bcfore mentioned.

I is the cross-bnr for the purpose of holding the h olt in its proper place, and isi screwed to the casing across the nose of the bolt, as seen iu figs. .1 and 2, plate 1. It also contains a stump, s3, on which one end of the 'tumbler T works, the other end receiving its motion from the same stump s as throws the bolt. On the lower edge of this tumbler will be found a check, c, for the purpose of assisting the wheel W to back up the bolt, as will be seen in iig. It has but two actions, upward and downward, thc stump raising it, it falling back of its own weight.

Figs. 1 und 2...* A is a, bridge for the purpose of holding the claw-socket F in its place on the cap K, and

4also to give support to the `rhe'el W, hut allowingof the free nctio'n of.` either.

Having new described the various parts, I' will,now describe its operation.

First throw out the holt; as shown in fig. V2, plate l, then pass u llut'piece of wire thi-tough the smell hol'e L into the recesses of vcircular springs Q,thereby spreading them apart, likewise holding-them opposite to the check el on' the lever L, fig. 1, plate 2, then pull the knob out and, turning to the right or'le'ft, set to any figures desired. If we now withdrew the wirethe circular springs will resume their` proper positions,holding euch disk to the number or letter to which it may have been set.` We will new push the knob in,iand, by turning it tothe right or left, We cnn throw the holt in or out.' As thelock is now set, allfthat is necessary to lock it is, rstto throw out the bolt, then pull out the knob and turn it'round three or four times, either to the right or left. It is now locked, and can be opened only by the figures or letters by which it may have been' set.

'We will now observe the movement of'the several parts. By referenceto figs. 1 and 2, plate 1, wc-will find that there is a. square hole in the claw-socket F, the object ot` which is to allow of the square)`l dof the shaft to enter, the socket-being the portion by which we communicate motion to ell otherportions ot he lcclt. We now giy'e the knob e quick and sudden turn to the right. The claw 3 strikes claw'l on the swivelling-dog Gr, passing it and causing claw 2 to-swing up in time to be caught by claw 1f-ot` the claw-socket, which holds it while we turn fthe wheel W. As scones the wheel W beginsto move, .the lever lniig.4 1,plute 2, is raised by lthe stump s" of the wheeh'euusing the checlr of the lever to enter thereeess of the circular springs 'Q5 but et no'time allowing it to remain' in the recess, locked orunloeked. At. the suine time thnt we turn the-wheel so as to cause the lever Vto move wle-also cause the stump s of the cop K to reise the tumbler T, so as to clear the check c of thebolt, v at wl1icl1.point the holt begins to 'more buck toward thc' recess inthe wheel, und asfwe keep turning it enters it .fur enough to allow the door to be opened, and of course the lock is unlocked, the tumbler T restingI upon the stump el, bywhich it was raised. In 1oclting"we" turu the wheel to the lei-"t, which throws the holt B out and the tumbl'ergl drops of its own weight in 'its proper place behind thecheck f."l of the bolt, and :is we keep turning the place, formerly occupied vby the recess of the afbeel is occupied by a solid portion of the wheel, which backs the bolt up solid, as seen in fig. 2, plzite 1` If we now-pullthe'knob out we cause-the claw-socket telose its hold of the swivelling-dog, 'and by turning the knob to the right or left'a. few times wechu'nge the recesses of the circuler ,spngs,-un d the leek can be opened only by the figuresor letters by which it was set, no metter how many times you tux-u the knob either to the lett or right. Pushed in or pulled out, backward or forward, it is the same; it can he opened only by theseme figures or letters by which it was set.

Having-new fully described my lock, what I claim ,as new, a'nd desire to secure by Letters Ifutent, is as follows:

, 1. I claim the wheel W, the stumps s4 and'ls, the recess R, end the cap K, with its stumps sl and s, :is4

shown in lig. 1,'plute 2, and' iig. plate 1, when arranged in' the manner and for the purpose herein set forth. 2. I claim tbe'le'ver L, with recess-Rifond check c, es shown viu figs. 1 and 7, plate 2, substantially in thc manner und for the purpose herein set forth.

3. I- claim the'cross-bar I, with its stump s", also the tumbler T, as shown figs. 1 and 2, plate `1, in the manner and for the purpose herein set forth. i

4. I claimtbe swivelling-dog Grond lthe claw-socket F, as shown in figs. 1 and. 2, plat-e 1, and figs: 5 M1696, plate 2, when zii-ranged in the manner und for the p'urpose herein set forth.

` EDWARD W. BRETTELL.

Witnesses ARTHUR lsnnnisort, EDWARD Gnnnrzs.- 

